Abrégé

A method of ammonia (NH3) decomposition includes flowing hydrogen (H2) through a reactor containing a catalyst to reduce the catalyst and flowing an NH3 mixture through the reactor at a temperature of 100 to 800 degrees Celsius (° C.) to decompose the NH3. The catalyst is a metal-doped lanthanum manganite material (LaMnO3) including cobalt (Co) and nickel (Ni) each in an amount of 0.1 to 2.0 percent by weight (wt. %) based on a total weight of the metal-doped LaMnO3 material. The NH3 mixture includes NH3 and helium in a volumetric ratio of 5:95 to 15:85. At least 99 wt. % of NH3 is decomposed to form H2 and N2 at a temperature of 550° C. based on an initial amount of the NH3.

Classes IPC  ?

• C01B 3/04 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par décomposition de composés inorganiques, p. ex. de l'ammoniac
• B01J 23/889 - Manganèse, technétium ou rhénium
• B01J 35/51 - Sphères
• B01J 37/08 - Traitement thermique
• B01J 37/12 - Oxydation

Abrégé

A hybrid energy storage system used in an electric vehicle comprises multiple energy sources, including a fuel cell, a battery, a supercapacitor, and a photovoltaic panel. The system further comprises multiple DC-DC converters, a DC bus, a DC-AC inverter, and a sliding mode controller. Inputs of a first, a second, a third, and a fourth DC-DC converters are coupled to the fuel cell, the battery, the supercapacitor and the photovoltaic panel, respectively. Outputs of the first, second, third, and fourth DC-DC converters are coupled to the DC bus. The DC-AC inverter supplies AC electric power to a motor of an electric vehicle. The sliding mode controller controls operation of the hybrid energy storage system by applying a barrier-function-based controller gain to regulate a DC voltage at the DC bus to a reference voltage.

Classes IPC  ?

• B60L 50/75 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible utilisant de la puissance de propulsion fournie à la fois par des piles à combustible et des batteries
• B60L 8/00 - Propulsion électrique à partir d'énergie tirée des forces de la nature, p. ex. du soleil ou du vent
• B60L 50/40 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des condensateurs
• H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique

Abrégé

A method of planning a flight path of a plurality of unmanned aerial vehicles (UAVs) over one or more regions includes receiving a boundary information of the one or more regions; decomposing the one or more regions into a plurality of point of interests (POIs) based on the boundary information; determining a line sweep direction for each POI of the plurality of POIs to minimize a number of turns to achieve a predetermined coverage; generating an intra-region path in each POI of the plurality of POIs; generating a back-and-forth path pattern for the intra-region paths based on the line sweep direction; formulating a problem matrix by calculating an inter-region energy; solving the problem matrix with a heuristic approach and an exact approach; and determining the flight path based on the heuristic approach and the exact approach.

Classes IPC  ?

• G08G 5/34 - Gestion des plans de vol pour la modification des plans de vol
• G08G 5/56 - Aides à la navigation ou au guidage pour plusieurs aéronefs
• G08G 5/57 - Aides à la navigation ou au guidage pour les aéronefs sans pilote
• G08G 5/59 - Aides à la navigation ou au guidage conformément aux zones de vol prédéfinies, p. ex. pour éviter des zones interdites

Abrégé

A mixed matrix membrane includes a polymer comprising reacted units of a 3,5-diaminobenzoic acid and isophthaloyl chloride in a molar ratio of 5:1 to 1:5 and a polyvinylidene fluoride. A weight ratio of the polymer to the polyvinylidene fluoride is from 1:1 to 1:20 based on a total weight of the polymer and the polyvinylidene fluoride. The polymer and the polyvinylidene fluoride form a trilayer structure of horizontal layers with a first porous outer layer of the polyvinylidene fluoride and a second porous outer layer covering a porous inner layer of the polymer. The first porous outer layer has a pore size with a longest dimension of 3 to 30 μm, the second porous outer layer has a pore size with a longest dimension of 1 to 10 μm, and the porous inner layer has void spaces having an average longest dimension of from 20 to 500 μm.

Classes IPC  ?

• C08J 5/22 - Bandes, membranes ou diaphragmes
• B01D 69/12 - Membranes compositesMembranes ultraminces
• B01D 71/34 - Fluorure de polyvinylidène
• B01D 71/56 - Polyamides, p. ex. polyesters-amides
• C08G 69/28 - Procédés de préparation

Abrégé

A passive radiative cooling system and a method of making a passive radiative cooling system includes a thermally insulated box having walls and a floor, wherein an inner surface of the walls and the floor are coated with a reflective tape. A cone-shaped aluminum reflector is located within an inner cavity of the thermally insulated box and is attached to the floor with a central axis coincident with a central axis of the thermally insulated box. At least one electronic circuit is directly printed on or attached to a polished aluminum substrate, which is then coated with polydimethylsiloxane (PDMS) to form a polydimethylsiloxane (PDMS)-coated aluminum double-sided flat thermal emitter, which is placed vertically within the cone-shaped aluminum reflector with its vertical axis coincident with the central axis of the cone-shaped aluminum reflector. A transparent polyethylene sheet covers a top opening of the thermally insulated box.

Classes IPC  ?

• H05K 1/00 - Circuits imprimés
• H05K 1/02 - Circuits imprimés Détails

Abrégé

Methods and systems for controlling charging and discharging of a superconducting magnetic energy storage (SMES) device include a control system configured to derive transcendental equations for a voltage across superconducting coil of the SMES device and DC current stored in magnetic field of superconducting coil. The control system is configured to solve transcendental equations to predict the voltage across the superconducting coil and the DC current stored in the magnetic field using Perovich special trans function theory and Lambert's W equation. The control system actuates selectable switches based on the predicted voltage and DC current to perform one of charging the superconducting coil with the DC current and storing the DC current in the magnetic field and discharging the superconducting coil to generate a discharge DC current, converting the discharge DC current to AC power, and transmitting the AC power to a three phase power system.

Classes IPC  ?

• H01F 6/00 - Aimants supraconducteursBobines supraconductrices
• H01F 6/04 - Refroidissement
• H01F 6/06 - Bobines, p. ex. dispositions pour l'enroulement, l'isolation, les enveloppes ou les bornes des bobines

Abrégé

A radiative cooling paint for passive cooling comprises barium sulfate powder, binder and water. The BaSO4 powder includes particles in different hydrodynamic size distributions, with an assortment of average particle sizes in the range of about 45 nm to about 1650 nm. Surfaces coated with these paints have a maximum solar reflectance of about 98% and have temperatures as low as 29° C. when exposed to solar radiation for a period of 1 hour. A method for preparation of radiative cooling paints is further described, wherein BaSO4 particles in different hydrodynamic size distributions are obtained by ball milling process.

Classes IPC  ?

• C09D 7/61 - Adjuvants non macromoléculaires inorganiques
• C08K 3/30 - Composés contenant du soufre, du sélénium ou du tellure
• C09D 5/44 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, caractérisées par leur nature physique ou par les effets produitsApprêts en pâte pour des applications électrophorétiques
• C09D 7/40 - Adjuvants

Abrégé

A method of carbon dioxide (CO2) reduction includes contacting a working electrode, a counter electrode, and a reference electrode with an aqueous solution. The working electrode includes a cadmium-doped zeolitic imidazolate framework-8 (Cd@ZIF-8) in a sulfonated tetrafluoroethylene based fluoropolymer-copolymer on a conductive material. The cadmium (Cd) is present in an amount of 5 to 35 percent by weight in the Cd@ZIF-8, based on a total weight of the Cd@ZIF-8. The method further includes mixing of carbon dioxide with the aqueous solution, applying a potential of 0.0 V to −1.5 V vs. RHE to the working electrode, and producing hydrogen (H2) and carbon monoxide (CO) at the working electrode by reacting the CO2 with the aqueous solution.

Classes IPC  ?

• C25B 11/095 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’au moins un élément catalytique et d’au moins un composé catalytiqueÉlectrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé de plusieurs éléments catalytiques ou composés catalytiques au moins un des composés est de type organique
• C25B 1/23 - Oxyde de carbone ou gaz de synthèse
• C25B 9/15 - Cellules à circulation de fluide
• C25B 11/032 - Électrodes à diffusion de gaz
• C25B 11/052 - Électrodes comportant un substrat et un ou plusieurs revêtements électro-catalytiques

Abrégé

A method of brick production includes mixing an uncalcined gypsum powder and a quartz material to form a mixture, mixing the mixture with water to form a composition, cold sintering the composition in a mold at a pressure of 50 to 450 megapascal (MPa) at room temperature for 20 to 40 minutes (min), and drying the cold sintered compositions for 5 to 10 days at a maximum temperature of 50 degrees Celsius (° C.) in a sealed container to form a brick. The quartz material is selected from a group consisting of a quartz sand and a quartz powder. A weight ratio of the uncalcined gypsum powder to the quartz material is from 5:95 to 95:5. A weight ratio of the water to the mixture is from 0.01:1 to 0.15:1.

Classes IPC  ?

• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
• C04B 14/04 - Matières riches en siliceSilicates
• C04B 14/06 - QuartzSable

Produits et services

Conducting workshops, seminars, and educational events; Conducting workshops, seminars, and classes in the fields of volunteerism, volunteer skill development, volunteer management, innovation, community-oriented innovation solutions, community engagement, leadership development, and social innovation; providing training for volunteer managers and consultants in the fields of volunteerism, volunteer skill development, and volunteer management; Publication of printed educational materials, namely, educational guides, manuals, and training materials in the fields of volunteerism, volunteer skill development, volunteer management, innovation, community-oriented innovation solutions, community engagement, leadership development, and social innovation; conducting workshops, seminars, classes, and competitions in the fields of innovation, business incubation, entrepreneurism, and business development

Abrégé

A cable pointing tool includes an electrical motor system. The electrical motor system includes an electrical motor and a grinder stone. The electrical motor powers the grinder stone to sharpen an end of a cable. The cable pointing tool includes a pointing system. The pointing system includes a cable holder to hold the cable and a mechanical dual-handle system to guide the cable towards the grinder stone. The cable pointing tool includes a main base to mount the electrical motor system and the pointing system.

Classes IPC  ?

• H01R 43/28 - Appareils ou procédés spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation de connecteurs de lignes ou de collecteurs de courant ou pour relier les conducteurs électriques pour traiter le fil avant sa connexion aux pièces de contact, non prévus dans les groupes
• H02K 11/28 - Interrupteurs à commande manuelle

Abrégé

A method and system for automatically detecting code smells in a source code in any of object-oriented programming languages and performing code correction includes processing circuitry configured with a DSL component, a code smells detection component, a code smells correction component and a reporting component. The DSL component maintains a representation of linguistic structures of a DSL using a formal grammar. The DSL is a language-independent formal language to solve a class of problems in a domain of knowledge. The code smells detection component applies smell detection rules for detecting a code smell type to the source code to detect potential code smells and maintains an extensible set of smell specifications templates. The code smells correction component applies the DSL to specify corrective actions for each detected code smell and generates corrected source code based on the corrective actions. The reporting component outputs the corrected source code.

Classes IPC  ?

• G06F 8/70 - Maintenance ou gestion de logiciel
• G06F 8/30 - Création ou génération de code source
• G06F 11/3604 - Analyse de logiciel pour vérifier les propriétés des programmes

Abrégé

A metal-organic framework (MOF) includes cadmium, magnesium, linking units of 2,5-dihydroxyterephthalic acid complexed with cadmium and magnesium, and units of guanidine in an amount of 1 to 25 percent by weight (wt. %) based on the total weight of the MOF. The units of guanidine are reacted with the linking units of 2,5-dihydroxyterephthalic acid. The MOF is in the shape of spherical particles with a longest dimension of 50 to 250 nanometers (nm).

Classes IPC  ?

• B01J 20/22 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance organique
• B01D 53/04 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes
• B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques
• B01J 20/30 - Procédés de préparation, de régénération ou de réactivation
• C07F 3/08 - Composés du cadmium

Abrégé

A gel electrolyte includes a polyvinyl alcohol, lithium sulfate, and a 1-butyl-3-methylimidazolium trifluoromethanesulfonate. The gel electrolyte is porous having an average pore diameter of 20 to 30 micrometers (μm) and an average pore wall thickness of 5 to 10 μm. The gel electrolyte comprises spherical nodules having a diameter of 5 to 500 μm.

Classes IPC  ?

• H01G 11/62 - Électrolytes liquides caractérisés par le soluté, p. ex. sels, anions ou cations
• H01G 11/34 - Électrodes caractérisées par leur matériau à base de carbone caractérisées par la carbonisation ou l’activation de carbone
• H01G 11/60 - Électrolytes liquides caractérisés par le solvant

Abrégé

A method for determining strength of a tree trunk includes connecting one end of a cable to an attachment point on the tree trunk above ground, with another end of the cable being connected through a strain gauge to a winch, wherein the winch applies a pulling force through the cable to the tree trunk until a deflection of the tree trunk meets a predefined deflection threshold. The method further includes measuring, using the strain gauge and a protector, a magnitude as well as application angle of the pulling force, respectively, and using the measured magnitude as well as application angle of the pulling force, based on a pre-established model that correlates a pulling force applied to the tree trunk with a displacement of the tree trunk, calculating a Modulus of Elasticity (MoE) of the tree trunk, that represents the strength of the tree trunk.

Classes IPC  ?

• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
• G01M 5/00 - Examen de l'élasticité des structures ou ouvrages, p. ex. fléchissement de ponts ou d'ailes d'avions

Abrégé

A membrane for oil separation includes a first layer including a ceramic alumina support, and a second layer including particles of a MIL-125-NH2 metal-organic framework (MOF) crosslinked with isophthaloyl units. One or more amine groups of the MIL-125-NH2 MOF are covalently bonded to one or more acid groups of the IPC. The membrane is porous with a pore size of 0.01 to 0.2 micrometers (μm). The particles of the second layer are in the shape of discs having the longest dimension of 0.5 to 3 μm.

Classes IPC  ?

• B01D 69/14 - Membranes dynamiques
• B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
• B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
• B01D 69/12 - Membranes compositesMembranes ultraminces
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C02F 101/32 - Hydrocarbures, p. ex. huiles

Abrégé

A sodium oxide-doped oxynitride glass-ceramic electrolyte includes Na3.6K1.4Ca5.7Mg3.6Al12.6Si16.5O50N6.8 and Na2O, where the sodium oxide-doped oxynitride glass-ceramic is formed by spark plasma sintering a mixture including the Na3.6K1.4Ca5.7Mg3.6Al12.6Si16.5O50N6.8 and the Na2O. The amount of Na2O present in the mixture is in a range from 3 wt. % to 12 wt. % of the total weight of the mixture. The sodium oxide-doped oxynitride glass-ceramic has an alternating current (AC) conductivity greater than or equal to 5×10−11 siemens per centimeter (S·cm−1) measured at 295-degree kelvin (K) and a frequency of 100 Hertz (Hz).

Classes IPC  ?

• C03C 4/14 - Compositions pour verres ayant des propriétés particulières pour verre électro-conducteur
• C03C 10/00 - Verre dévitrifié ou vitrocéramiques, c.-à-d. verre ou céramiques ayant une phase cristalline dispersée dans la phase vitreuse et constituant au moins 50% en poids de la composition
• H01M 10/054 - Accumulateurs à insertion ou intercalation de métaux autres que le lithium, p. ex. au magnésium ou à l'aluminium
• H01M 10/0562 - Matériaux solides

Abrégé

A method of downhole cementing using a geopolymer cementing composition which includes class F fly ash particles including 50 weight percentage (wt. %) to 62.5 wt. % SiO2, 25 to 35 wt. % Al2O3, 2.5 to 7.5 wt. % CaO, 2.5 to 7.5 wt. % Fe2O3, 0.5 to 3.5 wt. % TiO2, and 0.5 to 3.5 wt. % K2O, hematite particles and laponite particles. The laponite particles include 52.5 to 65 wt. % SiO2, 20 to 35 wt. % MgO, 1 to 4 wt. % Na2O, and 0.1 to 1.5 wt. % Li2O. The composition also includes a binder including an aqueous alkaline solution containing 1 to 8 mol/L an alkali activator which is KOH, NaOH, and/or Na2SiO3. Once cured, the bottom third of the cured specimen has a density of X and a porosity of Y and the top third of the cured cement has a density of 0.75*X to 1.05*X and a porosity of 0.60*Y to 1.10*Y.

Classes IPC  ?

• C09K 8/467 - Compositions de cimentation, p. ex. pour la cimentation des tubes dans les trous de forageCompositions de bouchage, p. ex. pour tuer des puits contenant des liants inorganiques, p. ex. ciment Portland contenant des additifs pour des utilisations spécifiques
• C04B 14/10 - Argile
• C04B 14/30 - Oxydes autres que la silice
• C04B 18/08 - Cendres volantes
• C04B 22/06 - OxydesHydroxydes
• C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
• C04B 103/20 - Retardateurs
• C04B 103/32 - Superplastifiants
• C04B 103/50 - Agents anti-mousseAgents d'expulsion d'air
• E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues

Abrégé

A method for developing an emotion-aware adaptive user interface for a mobile application, including identifying emotional requirements of users of the mobile application and building an emotional goal model based on the emotional requirements. The emotional goal model represents relationships between emotional goals and features of the mobile application. The method also constructs an emotion transition map that defines user emotional states and transitions between the user emotional states. The method further designs a set of adaptation strategies for adapting the features of the mobile application in response to the user emotional states based on the emotional goal model and the emotion transition map. The method incorporates the set of adaptation strategies into the mobile application that determines a current user emotional state and adjusts the features based on the determined current user emotional state, and a selected adaptation strategy.

Classes IPC  ?

• G06F 9/451 - Dispositions d’exécution pour interfaces utilisateur
• G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur

Abrégé

A method and a control system for controlling a hybrid electric vehicle (HEV). The method includes regulating power distribution in a hybrid energy storage system (HESS) having multiple energy sources, including a fuel cell, a battery, a supercapacitor, and a photovoltaic panel. The method includes controlling an induction motor connected to the DC bus through an inverter by applying a space vector pulse width modulation (SVPWM) technique to generate a desired alternative current (AC) output. The method includes maintaining a desired speed and torque of the induction motor by independently modulating d-axis and q-axis current components of a stator of the induction motor. The method includes implementing a barrier function adaptive sliding mode controller (BFASMC) to adjust controller gain values in real-time in response to varying load conditions, mitigate control chattering, and adaptively manage energy flow within the HESS based on load conditions and regenerative braking scenarios.

Classes IPC  ?

• H02P 21/05 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ spécialement adaptés pour amortir les oscillations des moteurs, p. ex. pour la réduction du pompage
• B60W 10/08 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des unités de traction électrique, p. ex. des moteurs ou des générateurs
• B60W 20/13 - Commande de l'apport de puissance de chacun des moteurs primaires pour répondre à la demande de puissance requise afin de rester dans des limites de puissance d'entrée ou sortie de la batterieCommande de l'apport de puissance de chacun des moteurs primaires pour répondre à la demande de puissance requise afin d'éviter la surcharge ou la décharge excessive de la batterie
• B60W 30/18 - Propulsion du véhicule
• H02P 21/00 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ
• H02P 27/12 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions appliquant des impulsions en guidant le vecteur-flux, le vecteur-courant, ou le vecteur-tension sur un cercle ou une courbe fermée, p. ex. pour commande directe du couple

Abrégé

A prosthetic limb for replacing a portion of a leg of a subject includes a prosthetic limb body, a prosthetic limb knee, a prosthetic limb ankle and a multimodal sensor array to obtain sensor data used to derive parameters indicative of a physiological state of the subject and an environment in a proximity of the prosthetic limb. The prosthetic limb includes a data processing unit to process the sensor data to generate a processed sensor data generated using a machine learning (ML) model. The ML model outputs the processed sensor data as a predicted subject intent and predicted prosthetic limb parameters. The prosthetic limb includes a control system to generate a control signal having control parameters based on the processed sensor data using a fuzzy logic controller and a proportional-integral-derivative (PID) controller of the control system for adjusting a movement of the prosthetic limb.

Classes IPC  ?

• A61F 2/64 - Articulations du genou
• A61B 5/389 - Électromyographie [EMG]
• A61F 2/66 - PiedsArticulations de la cheville
• A61F 2/72 - Commandes bioélectriques, p. ex. myoélectriques

Abrégé

A grounded positive and negative capacitance multiplier including a first number (i) of current conveyors connected in a cascaded manner. Each current conveyor includes a transconductance amplifier (OTA), a feedback network (FBN) including a second number (N) of CMOS inverters, and a feedforward network (FFN) including a third number (M) of CMOS inverters. A base capacitor is connected between a first input terminal of a first current conveyor of the cascaded current conveyors and a ground node. A multiplied capacitance is obtained between a second input terminal of the first current conveyor and the ground node, with a capacitance value given by A grounded positive and negative capacitance multiplier including a first number (i) of current conveyors connected in a cascaded manner. Each current conveyor includes a transconductance amplifier (OTA), a feedback network (FBN) including a second number (N) of CMOS inverters, and a feedforward network (FFN) including a third number (M) of CMOS inverters. A base capacitor is connected between a first input terminal of a first current conveyor of the cascaded current conveyors and a ground node. A multiplied capacitance is obtained between a second input terminal of the first current conveyor and the ground node, with a capacitance value given by ( - M N ) i * C B . A grounded positive and negative capacitance multiplier including a first number (i) of current conveyors connected in a cascaded manner. Each current conveyor includes a transconductance amplifier (OTA), a feedback network (FBN) including a second number (N) of CMOS inverters, and a feedforward network (FFN) including a third number (M) of CMOS inverters. A base capacitor is connected between a first input terminal of a first current conveyor of the cascaded current conveyors and a ground node. A multiplied capacitance is obtained between a second input terminal of the first current conveyor and the ground node, with a capacitance value given by ( - M N ) i * C B . CB represents a capacitance of the base capacitor. When i is an odd number, the multiplied capacitance has a negative value, and when i is an even number, the multiplied capacitance has a positive value.

Classes IPC  ?

• H03F 1/26 - Modifications des amplificateurs pour réduire l'influence du bruit provoqué par les éléments amplificateurs
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• H03F 3/45 - Amplificateurs différentiels

Abrégé

A method of carbon dioxide (CO2) mineralization includes injecting a brine solution into a subterranean geological formation. The brine solution includes calcium chloride (CaCl2)) in an amount of at least 2 wt. % and a chelating agent (EDTA) in an amount of at least 5 wt. % based on the total weight of the brine solution. The method further includes pressurizing the subterranean geological formation to a pressure of 20 psi to 2000 psi with CO2 and reacting the CO2 with the CaCl2) in the subterranean geological formation at a temperature of 20 to 90° C. for 20 to 28 hours to form calcium carbonate (CaCO3) in the subterranean geological formation. The calcium carbonate is in the form of crystals of aragonite, calcite, vaterite, and halite having spherical, prismatic, rhombohedral, and scalenohedral morphologies.

Classes IPC  ?

• E21B 41/00 - Matériel ou accessoires non couverts par les groupes
• C01F 11/18 - Carbonates

Abrégé

A method of dye degradation includes contacting a metal-free catalyst with a dye solution in a reaction chamber. The metal-free catalyst includes a carbonized polyimide (PI) material including reacted units of a 4,4′-(hexafluoroisopropylidene) phthalic anhydride and reacted units of a 3,3′-dimethyl-naphthridine. The dye solution includes methylene blue (MB). The method further includes irradiating the reaction chamber with light and degrading dye in the dye solution.

Classes IPC  ?

• C02F 1/32 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par irradiation par la lumière ultraviolette
• B01J 21/18 - Carbone
• B01J 35/33 - Propriétés électriques ou magnétiques
• B01J 35/61 - Surface spécifique
• B01J 35/63 - Volume des pores
• B01J 35/64 - Diamètre des pores
• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 37/06 - Lavage
• B01J 37/08 - Traitement thermique
• C02F 1/74 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen de l'air
• C02F 101/30 - Composés organiques

Abrégé

An ultrafiltration membrane comprising: a microporous support layer including polyvinylidene fluoride; and, an active layer disposed on and in the support layer. The active layer comprises a polyamide matrix in which are dispersed nanoparticles of strontium titanate (SrTiO3) which have been functionalized with an amino-functional alkoxysilane. The nanoparticles of strontium titanate are covalently bonded to the polyamide matrix, and the polyamide matrix is obtained by the polycondensation reaction of a C2-C6 alkylene diamine and an aromatic dicarboxylic acid or a reactive derivative thereof.

Classes IPC  ?

• B01D 69/14 - Membranes dynamiques
• B01D 61/14 - UltrafiltrationMicrofiltration
• B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
• B01D 69/10 - Membranes sur supportSupports pour membranes
• B01D 71/02 - Matériaux inorganiques
• B01D 71/56 - Polyamides, p. ex. polyesters-amides
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C02F 101/32 - Hydrocarbures, p. ex. huiles

Abrégé

A method of dye degradation includes contacting a metal-free catalyst with a dye solution in a reaction chamber. The metal-free catalyst includes a carbonized polyimide (PI) material including reacted units of a 4,4′-(hexafluoroisopropylidene) phthalic anhydride and reacted units of a 3,3′-dimethyl-naphthidine. The dye solution includes methylene blue (MB). The method further includes irradiating the reaction chamber with light and degrading dye in the dye solution.

Classes IPC  ?

• C02F 1/32 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par irradiation par la lumière ultraviolette
• B01J 21/18 - Carbone
• B01J 35/33 - Propriétés électriques ou magnétiques
• B01J 35/61 - Surface spécifique
• B01J 35/63 - Volume des pores
• B01J 35/64 - Diamètre des pores
• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 37/06 - Lavage
• B01J 37/08 - Traitement thermique
• C02F 1/74 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen de l'air
• C02F 101/30 - Composés organiques

Abrégé

An apparatus for managing energy in an unmanned aerial vehicle (UAV) including a hybrid powertrain that is configured to provide electric power to onboard power-consuming units coupled to a DC bus and includes a fuel cell coupled through a boost converter, a battery coupled through a bidirectional converter, and a supercapacitor directly coupled to the DC bus. The apparatus includes processing circuitry configured to optimize weighting factors of an equivalent consumption minimization (ECM) model for multiple load profile scenarios, extract a state variable dataset including state variables and fuel cell power reference values, and generate a representative dataset through data reduction. Based on real-time state measurements, the processing circuitry identifies historical cases from the representative dataset and allocates power among the fuel cell, battery, and supercapacitor.

Classes IPC  ?

• B64U 50/32 - Alimentation en énergie électrique ou distribution de celle-ci générée par des piles à combustible
• G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques

Abrégé

A method and an apparatus for negating a hardware mismatch in a Radio Frequency (RF) front-end with an on-chip passive double edge-tuning mechanism includes generating a pair of Local Oscillator (LO) signals with a predefined 90° phase difference. The method includes adjusting a rising edge and a falling edge of one of the pair of LO signals, using a passive delay tuning mechanism, to compensate for a gain mismatch, ε, and a phase mismatch, θ, between the pair of LO signals. The method includes performing the adjusting directly in a RF domain at LO signal generation stage, prior to digitization by an Analog-to-Digital Converter (ADC) in a receiver front-end of the RF front-end, or after Digital-to-Analog Converter (DAC) in a transmitter front-end of the RF front-end.

Classes IPC  ?

• H03D 3/00 - Démodulation d'oscillations modulées en angle
• H04B 1/10 - Dispositifs associés au récepteur pour limiter ou supprimer le bruit et les interférences
• H04B 1/16 - Circuits

Abrégé

A system for water purification includes an inlet in fluid communication with a first column, the first column, in fluid communication with a second column, the second column, in fluid communication with an outlet, and the outlet where the first column is loaded with a first filtration material including polymer-modified graphene oxide carbon dots according to the structure A system for water purification includes an inlet in fluid communication with a first column, the first column, in fluid communication with a second column, the second column, in fluid communication with an outlet, and the outlet where the first column is loaded with a first filtration material including polymer-modified graphene oxide carbon dots according to the structure A system for water purification includes an inlet in fluid communication with a first column, the first column, in fluid communication with a second column, the second column, in fluid communication with an outlet, and the outlet where the first column is loaded with a first filtration material including polymer-modified graphene oxide carbon dots according to the structure and where the second column is loaded with a second filtration material including polymer-modified graphene oxide quantum dots according to the structure, A system for water purification includes an inlet in fluid communication with a first column, the first column, in fluid communication with a second column, the second column, in fluid communication with an outlet, and the outlet where the first column is loaded with a first filtration material including polymer-modified graphene oxide carbon dots according to the structure and where the second column is loaded with a second filtration material including polymer-modified graphene oxide quantum dots according to the structure,

Classes IPC  ?

• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C02F 101/10 - Composés inorganiques
• C02F 101/16 - Composés de l'azote, p. ex. ammoniac
• C02F 101/20 - Métaux lourds ou leurs composés
• C02F 101/32 - Hydrocarbures, p. ex. huiles
• C02F 101/34 - Composés organiques contenant de l'oxygène

Abrégé

A system for recovering ammonia from an endothermic reaction in a subsurface formation may comprise a subsurface formation; a wellbore fluidly connected to the subsurface formation; a tubing string positioned within the wellbore, wherein the wellbore and an exterior of the tubing string together define a wellbore annulus; a wellhead comprising one or more injection lines and one or more return lines fluidly connected to the wellbore; one or more fluid injection pumps configured to supply an endothermic fluid composition to the subsurface formation through the one or more injection lines and the tubing string, the endothermic fluid composition operable to form ammonia when reacted; and one or more ammonia retention vessels fluidly connected to the return lines for receiving the ammonia through the wellbore annulus.

Classes IPC  ?

• E21B 36/00 - Aménagements pour le chauffage, le refroidissement ou l'isolation dans les trous de forage ou dans les puits, p. ex. pour être utilisés dans les zones de permagel
• C01B 3/047 -
• C01C 1/16 - Halogénures d'ammonium
• C09K 8/70 - Compositions pour la formation de crevasses ou de fractures caractérisées par leur forme ou par la forme de leurs composants, p. ex. mousses
• E21B 33/068 - Têtes de puitsLeur mise en place comportant des dispositions pour introduire des objets dans les puits ou pour les en retirer, ou pour y introduire des fluides
• E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures

Abrégé

A system for performing fault management in an electric distribution network includes: fault indicators (FIs) arranged at locations within the electric distribution network to detect faults within the electric distribution network and provide information on the detected faults, and remote-controlled sectionalizing switches (RCSs) and manual sectionalizing switches (MSs) arranged at the locations within the electric distribution network to isolate faulty parts from the electric distribution network to ensure power supply to unfaulty parts. The placement of the FIs, the RCSs, and the MSs are determined by solving an objective function, such that a sum of an equipment factor associated with the FIs, RCSs, and MSs, and an outage factor associated with service interruptions of the electric distribution network, to be reduced. The objective function includes a first term representing an outage factor calculated based on malfunction probability of the FIs, the RCSs, and the MSs.

Classes IPC  ?

• H02H 7/26 - Protection sectionnelle de systèmes de câbles ou de lignes, p. ex. pour déconnecter une section dans laquelle un court-circuit, un défaut à la terre, ou une décharge d'arc se sont produits
• G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux

Abrégé

A solar energy storage device that includes a porous support, which includes nanosheets of MgO arranged to form spherical MgO microparticles, and a phase change material. The phase change material is impregnated into the porous support, that has a bimodal pore distribution having a first mode in a region of 5 nanometer (nm) to 10 nm and a second mode in a region of 25 nm to 75 nm. The spherical MgO microparticles have a mean particle size of 2.5 micrometers (μm) to 10 μm and are formed from nanosheets of MgO having a mean thickness of 5 nm to 150 nm.

Classes IPC  ?

• F24S 60/10 - Agencements pour l’emmagasinage de la chaleur collectée par les collecteurs de chaleur solaire utilisant la chaleur latente
• C01F 5/02 - Magnésie
• C09K 5/06 - Substances qui subissent un changement d'état physique lors de leur utilisation le changement d'état se faisant par passage de l'état liquide à l'état solide, ou vice versa
• F28D 20/00 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en généralAppareils échangeurs de chaleur de régénération non couverts par les groupes ou
• F28D 20/02 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en généralAppareils échangeurs de chaleur de régénération non couverts par les groupes ou utilisant la chaleur latente

Abrégé

Chemical reactions are expedited by exploiting contact electrification at curved microscale interfaces between water and a hydrophobic medium. The hydrophobic medium can be a solid, liquid, or gas. The microscale-interfaces can be surfaces of water droplets in contact with a hydrophobic medium, such as a gas, liquid, or solid, or they can be surfaces of gas microbubbles in contact with water alone or with water containing solid or liquid hydrophobic particles.

Classes IPC  ?

• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Produits et services

Educational services, namely, classes, seminars, workshops, and training programs in the field of school volunteering; Educational services, namely, workshops, seminars, classes, conferences, and events; Educational services, namely, classes, seminars, workshops, and training programs for educational leaders, school volunteer coordinators, teachers, and students; Educational materials, manuals, standards, and guidelines; educational publications, both printed and electronic; Educational services, namely, online educational classes, seminars, workshops, and training programs; Educational services, namely, educational research and studies; Educational services, namely, educational awareness and community activities relating to school volunteering; Educational consulting in the field of school volunteering

Abrégé

A particulate composite comprising, based on the weight of the composite: from 86 to 94 wt. % of magnesium (Mg) alloy; from 3 to 7 wt. % of titanium (Ti); and, from 3 to 7 wt. % of multiwalled carbon nanotubes (MWCNT). The Mg alloy includes, based on the weight of the alloy: from 5.5 to 6.5 wt. % of aluminum (Al); from 0.1 to 0.5 wt. % of manganese (Mn); from 0.1 to 1.0 wt. % of the combination of zinc (Zn) with at least one of copper (Cu), iron (Fe), nickel (Ni), and silicon (Si); and, a balance of Mg and inevitable impurities. The particulate composite has a median volume particle size (Dv50) of from 10 to 35 micrometers (μm) and a surface area of from 1 to 60 m2/g, as determined by Brunauer-Emmet-Teller (BET) analysis. The particulate composite may further have a measured H2 absorption capacity of from 4.5 to 6.2 wt. %, based on the weight of the composite.

Classes IPC  ?

• B22F 1/12 - Poudres métalliques contenant des particules non métalliques
• B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B22F 1/145 - Traitement chimique, p. ex. passivation ou décarburation
• B22F 1/16 - Particules métalliques revêtues d'un non-métal
• B22F 9/04 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau solide, p. ex. par broyage, meulage ou écrasement à la meule
• C22C 23/02 - Alliages à base de magnésium avec l'aluminium comme second constituant majeur

Abrégé

A fire-retardant material including a polymer matrix including, in reacted form, a diisocyanate, a chain extender, a carboxylate-comprising organic diol, an organophosphorus-containing polyol, an organophosphorus-free polyol. The diisocyanate and phosphorous-containing polyol are present in the polymer matrix a mole ratio of 1:1 to 50:1. The fire-retardant material includes 0.05 to 2.5 wt. % a metal-organic framework, based on a total weight of fire-retardant material. The fire-retardant material shows enhanced protection of metal surfaces from hydrogen embrittlement and may find use as a coating on a material exposed to hydrogen or a hydrogen-containing gas mixture.

Classes IPC  ?

• C08G 18/12 - Procédés mettant en œuvre un prépolymère impliquant la réaction d'isocyanates ou d'isothiocyanates avec des composés contenant des hydrogènes actifs, dans une première étape réactionnelle utilisant plusieurs composés contenant un hydrogène actif dans le premier stade de la polymérisation
• C07F 7/00 - Composés contenant des éléments des groupes 4 ou 14 du tableau périodique
• C08G 18/08 - Procédés de préparation
• C08G 18/24 - Catalyseurs contenant des composés métalliques de l'étain
• C08G 18/32 - Composés polyhydroxylésPolyaminesHydroxyamines
• C08G 18/48 - Polyéthers
• C08G 18/50 - Polyéthers contenant des hétéro-atomes autres que l'oxygène
• C23C 22/03 - Traitement chimique de surface de matériaux métalliques par réaction de la surface avec un milieu réactif laissant des produits de réaction du matériau de la surface dans le revêtement, p. ex. revêtement par conversion, passivation des métaux au moyen de solutions non aqueuses contenant des composés du phosphore

Abrégé

A method for detecting and monitoring scale formation in a fluid mixture involves combining two aqueous solutions with different ionic compositions, one rich in cations (e.g., Ca2+) and the other rich in anions (e.g., SO42−). Formation water (FW) with high calcium levels is mixed with seawater (SW) containing elevated sulfate concentrations. Different mixture ratios are then exposed to controlled environmental conditions that promote mineral precipitation. Light transmission is measured along the height of the fluid column over time using turbidity scanning. A localized decrease in transmission indicates scale formation. The process is assessed using the Transmission Stability Index (Tr-SI), which allows for real-time detection and analysis of scale nucleation and growth.

Classes IPC  ?

• G01N 21/53 - Dispersion, c.-à-d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p. ex. dans la fumée
• G01N 21/85 - Analyse des fluides ou solides granulés en mouvement
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• G01N 33/18 - Eau

Abrégé

A method of producing concrete, including: mixing natural pozzolan, silico-manganese fume, a coarse aggregate, and a fine aggregate to form a dry powder; and mixing an alkaline activator with the dry powder to form the concrete, the alkaline activator including sodium silicate and brine sludge, where: a density of the brine sludge is about 100 kg/m3 or more, a ratio of the sodium silicate to the brine sludge is about 2.5 to 1 by mass, and an oxide composition of the brine sludge includes 15-20 wt % CaO, 2-6 wt % MgO, 0.5-2 wt % SrO, 0.5-2 wt % Fe2O3, 0.5-1.5 wt % SiO2, 0-0.5 wt % SO3, 12-18 wt % Na2O, 7-10 wt % BaO, 2-5 wt % Al2O3, 0.25-1 wt % K2O, and 5-10 wt % Cl, determined according to ASTM C114, and a loss on ignition (LOI) of 35-45 wt %, determined according to ASTM C114.

Classes IPC  ?

• C04B 7/13 - Leurs mélanges avec des matières inorganiques cimentaires, p. ex. ciments Portland
• C04B 7/153 - Leurs mélanges avec d'autres matières inorganiques cimentaires ou avec d'autres activateurs
• C04B 14/06 - QuartzSable
• C04B 14/28 - Carbonates de calcium
• C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
• C04B 40/02 - Choix de l'environnement pour le durcissement
• C04B 103/00 - Fonctions ou propriétés de l'ingrédient actif
• C04B 103/10 - Accélérateurs
• C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle

Abrégé

A catalyst composition and a method for the transalkylation of heavy aromatics includes core-shell mesoporous silica-beta zeolite (BZ@MSi) composite particles including a mesoporous silica (MSi) shell, a beta zeolite (BZ) core particle, and nickel (Ni). The mesoporous silica shell encompasses the BZ core particle, with a thickness ranging from 10 nm to 100 nm. The thickness of the mesoporous silica shell is ranges from 10 nm to 100 nm. Further, Ni is dispersed over the BZ@MSi composite particles in an amount ranging from 0.1 wt. % to 10 wt. % relative to the total weight of the BZ@MSi composite particles.

Classes IPC  ?

• B01J 29/76 - Métaux du groupe du fer ou cuivre
• B01J 21/08 - Silice
• B01J 35/30 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général caractérisés par leurs propriétés physiques
• B01J 35/61 - Surface spécifique
• B01J 35/63 - Volume des pores
• B01J 37/00 - Procédés de préparation des catalyseurs, en généralProcédés d'activation des catalyseurs, en général
• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 37/03 - PrécipitationCo-précipitation
• B01J 37/06 - Lavage
• B01J 37/08 - Traitement thermique
• C07C 6/06 - Réactions de métathèse sur une liaison carbone-carbone non saturée sur une double liaison carbone-carbone sur une liaison double carbone-carbone appartenant à un cycle

Abrégé

A method for maximizing a minimum secure energy efficiency (EE) in a simultaneous transmitting and reflecting (STAR) reconfigurable intelligent surface (RIS)-assisted near-field orthogonal frequency division multiplexing (OFDM)-based wideband terahertz (THz) communication system. The system includes an M-antenna base station (BS) employing a true time delay (TTD)-based hybrid beamforming structure, a STAR-RIS with N reflective elements arranged in a uniform planar array (UPA), U single-antenna user equipment (UEs), and E single-antenna eavesdroppers (EVs), with UEs and EVs positioned on reflection and transmission sides of the STAR-RIS, respectively. The method includes maximizing the minimum secure EE subject to constraints on total transmit power, unit-modulus analog beamforming, STAR-RIS energy conservation, and TTD time-delay limits. The method further includes controlling the BS, digital baseband processing, each RF chain, each TTD, each phase shifter (PS), the STAR-RIS, and circuitry of each UE to operate in accordance with the maximized minimum secure EE.

Classes IPC  ?

• H04B 7/04 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées
• H04B 7/0426 - Distribution de puissance
• H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission

Abrégé

A method for electrochemical reduction of carbon dioxide in an H-type electrochemical cell includes applying a voltage to a solution including carbon dioxide in an H-type electrochemical cell, which includes a working electrode at least partially coated with a catalyst composition including CuO nanosheets doped with silver nanoparticles. The silver nanoparticles are disposed on the surface of the CuO nanosheets and the amount of silver is in a range from 15% to 60% of the combined weight of the CuO nanosheets and silver nanoparticles. During the applying the carbon dioxide is reduced to form one or more C2+ products and where the Faradaic efficiency for the formation of the C2+ products is greater than or equal to 35% at −1.05 V vs. RHE.

Classes IPC  ?

• C25B 3/26 - Réduction du dioxyde de carbone
• C25B 3/03 - Hydrocarbures acycliques ou cycliques
• C25B 11/037 - Électrodes constituées de particules
• C25B 11/067 - Composé inorganique, p. ex. oxyde d'indium-étain, silice ou oxydes de titane
• C25B 11/081 - Métal noble
• C25B 15/02 - Commande ou régulation des opérations

Abrégé

A method for training deep neural network for flood susceptibility prediction includes receiving training data including flood conditioning factor data for spatial units of geographic region together with ground truth data. The method includes inputting training data into deep neural network. The method includes generating plurality of candidate solutions, each candidate solution including parameter vector of weights and biases encoding relationships between flood conditioning factors and flood susceptibility outcomes. Further, the method includes refining each retained candidate solution by applying local search optimization process to minimize cost function computed relative to ground truth data. The method further includes selecting trained set of weights and biases for deep neural network from among refined solutions. Further, the method includes applying trained set of weights and biases to deep neural network to generate trained deep neural network configured to produce flood susceptibility probabilities for input flood conditioning factor data.

Classes IPC  ?

• G06N 3/09 - Apprentissage supervisé

Abrégé

A method includes providing a fluid including a heavy agent steel production byproduct. The heavy agent steel production byproduct includes calcium in an amount of 10 to 50 percent by weight (wt. %), iron in an amount of 8 to 25 wt. %, aluminum in an amount of 2 to 5 wt. %, magnesium in an amount of 1 to 5 wt. %, and silicon in an amount of 1 to 4 wt. % based on a total weight of the heavy agent steel production byproduct. The heavy agent steel production byproduct has a particle size distribution D50 value of 10 to 110 μm. The method further includes introducing the fluid into a subterranean formation through tubing disposed in a wellbore.

Classes IPC  ?

• E21B 33/138 - Plâtrage de la paroi du trou de forageInjections dans la formation
• C04B 18/14 - DéchetsRésidus provenant de procédés métallurgiques
• C09K 8/16 - Compositions contenant de l'argile caractérisées par les composés inorganiques autres que l'argile
• C09K 8/48 - Additifs pour l'augmentation de la densité ou du poids

Abrégé

A method of barite scale removal includes injecting a drilling fluid system containing a nanodot-treated chelating agent into tubing disposed in a wellbore in a subterranean geological formation. A chelating agent in the nanodot-treated chelating agent is diethylenetriamine pentaacetate and/or ethylenediaminetetraacetic acid. The nanodot-treated chelating agent has an emission wavelength of 400 to 500 nm while being illuminated with ultraviolet light at a wavelength of 365 nm. The method further includes circulating the drilling fluid system in the tubing to remove the scale from the tubing.

Classes IPC  ?

• E21B 37/06 - Procédés ou appareils pour nettoyer les trous de forage ou les puits utilisant des moyens chimiques pour empêcher ou limiter le dépôt de paraffine ou de substances analogues
• C09K 8/532 - Soufre

Abrégé

An ultrafiltration membrane containing at least partially calcined particulate kaolin; coal fly ash as defined by ASTM C618-22; activated carbon having a surface area of at least 1000 meter square per gram (m2/g), as determined by Brunauer-Emmett-Teller (BET) analysis; and, a hydrophilic polymer binder. The ultrafiltration membrane is in the form of a compressed powdered solid. Particles of the at least partially calcined particulate kaolin, the coal fly ash, the activated carbon and the hydrophilic polymer binder are homogeneously dispersed within the ultrafiltration membrane.

Classes IPC  ?

• B01D 71/02 - Matériaux inorganiques
• B01D 17/02 - Séparation de liquides non miscibles
• B01D 61/14 - UltrafiltrationMicrofiltration
• B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
• C01B 32/324 - Préparation caractérisée par les matières de départ à partir de matières résiduelles, p. ex. pneumatiques ou liqueur noire de sulfite résiduaire
• C01B 32/348 - Composés métalliques
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C02F 101/32 - Hydrocarbures, p. ex. huiles

Abrégé

A method for electrochemical reduction of carbon dioxide in an H-type electrochemical cell includes applying a voltage to a solution including carbon dioxide in an H-type electrochemical cell, which includes a working electrode at least partially coated with a catalyst composition including CuO nanosheets doped with silver nanoparticles. The silver nanoparticles are disposed on the surface of the CuO nanosheets and the amount of silver is in a range from 15% to 60% of the combined weight of the CuO nanosheets and silver nanoparticles. During the applying the carbon dioxide is reduced to form one or more C2+ products and where the Faradaic efficiency for the formation of the C2+ products is greater than or equal to 35% at −1.05 V vs. RHE.

Classes IPC  ?

• C25B 3/26 - Réduction du dioxyde de carbone
• C25B 3/03 - Hydrocarbures acycliques ou cycliques
• C25B 11/037 - Électrodes constituées de particules
• C25B 11/067 - Composé inorganique, p. ex. oxyde d'indium-étain, silice ou oxydes de titane
• C25B 11/081 - Métal noble
• C25B 15/02 - Commande ou régulation des opérations

Abrégé

A direct current (DC) power generation system includes a DC microgrid (MG) operating in an islanding mode. The system further includes a distributed control system for controlling operation of the DC MG. The DC MG includes distributed generators (DGs) interconnected through transmission lines for supplying local loads. The distributed control system includes a primary controller and a secondary controller. The distributed control system further includes a cyber network for communication between the plurality of DGs, cyber links used in the cyber network having time delays. Within a predefined settling time that is independent of initial conditions, the secondary controller manages power allocation among the DGs and regulates an average voltage of the DC MG, taking account of the time delays. The primary controller performs droop control for the DGs within the DC MG.

Classes IPC  ?

• H02J 1/00 - Circuits pour réseaux principaux ou de distribution, à courant continu
• H02J 13/13 -

Abrégé

A noise cancelling device includes first and second expansion chambers, both cylindrical and equipped with double-wall inlet and outlet extension pipes. Each expansion chamber includes two elements: the first elements includes first and second cylindrical portions with differing diameters, and the second element includes a third cylindrical portion connecting to a connecting pipe. The second element is slidingly engaged with the first element to form a cylindrical body. The expansion chambers, the connecting pipe, and the extension pipes form a unitary body, and axially aligned along a longitudinal axis in the order of inlet extension pipe, first expansion chamber, connecting pipe, second expansion chamber, and outlet extension pipe. The device has a plane of symmetry perpendicular to the longitudinal axis at a center point of the connecting pipe.

Classes IPC  ?

• G10K 11/16 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général
• F01N 1/08 - Silencieux caractérisés par leur principe de fonctionnement réduisant l'énergie des gaz évacués par étranglement ou tourbillon
• F01N 1/16 - Silencieux caractérisés par leur principe de fonctionnement par utilisation de parties mobiles
• G05D 3/12 - Commande de la position ou de la direction utilisant la contre-réaction

Abrégé

Methods may comprise providing a corrosion inhibitor composition comprising a dipyrazolopyridine of about 0.1 wt % to about 5 wt % concentration based on a total weight of the corrosion inhibitor composition; a long-chain amine of about 0.1 wt % to about 5 wt % concentration based on the total weight of the corrosion inhibitor composition; a thiourea of about 0.1 wt % to about 5 wt % concentration based on the total weight of the corrosion inhibitor composition; a thiazole of about 0.1 wt % to about 5 wt % concentration based on the total weight of the corrosion inhibitor composition; and a surfactant of about 0.1 wt % to about 5 wt % concentration based on the total weight of the corrosion inhibitor composition; contacting a metal surface with the corrosion inhibitor composition; and allowing the corrosion inhibitor composition to interact with the metal surface so as to inhibit corrosion of the metal surface.

Classes IPC  ?

• C09K 8/54 - Compositions pour inhiber in situ la corrosion dans les puits ou les trous de forage
• C07D 471/14 - Systèmes condensés en ortho
• C23F 11/14 - Composés contenant de l'azote
• E21B 41/02 - Lutte contre la corrosion sur place dans les trous de forage ou dans les puits

Abrégé

A nanocomposite material includes graphene oxide (GO) and a zeolitic imidazolate framework-7 (ZIF-7). The graphene oxide is present in an amount of 25 percent by weight (wt. %) to 40 wt. % based on a total weight of the nanocomposite material. The nanocomposite is in the shape of particles with a longest dimension of 0.5 micrometers (μm) to 5 μm.

Classes IPC  ?

• B01J 20/22 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance organique
• B01J 20/20 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone libreCompositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone obtenu par des procédés de carbonisation
• B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques
• B01J 20/30 - Procédés de préparation, de régénération ou de réactivation
• C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
• C02F 101/30 - Composés organiques
• C02F 101/34 - Composés organiques contenant de l'oxygène

Abrégé

A method for automated sedimentary structure recognition includes acquiring a digital image of a siliciclastic sedimentary rock in a drilling core. The method further includes processing the digital image by segmenting the digital image into a grid of image cells. Once the digital image is segmented into the grid, extracting image features from the grid, using a backbone Convolutional Neural Network (CNN). Upon extracting the image features, predicting multiple bounding boxes per grid cell using a CNN object detection model. Each bounding box has a confidence score that reflects a likelihood of an object's presence and a precision of a bounding box. Further, coordinates of each bounding box, class labels of objects in each bounding box, and the confidence score for each bounding box as an output to a user.

Classes IPC  ?

• G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p. ex. des objets vidéo
• E21B 25/00 - Appareils pour recueillir ou retirer des carottes intactes, p. ex. tubes carottiers ou extracteurs de carottes
• G06V 10/25 - Détermination d’une région d’intérêt [ROI] ou d’un volume d’intérêt [VOI]
• G06V 10/26 - Segmentation de formes dans le champ d’imageDécoupage ou fusion d’éléments d’image visant à établir la région de motif, p. ex. techniques de regroupementDétection d’occlusion
• G06V 10/77 - Traitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source
• G06V 10/774 - Génération d'ensembles de motifs de formationTraitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source méthodes de Bootstrap, p. ex. "bagging” ou “boosting”
• G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux

Abrégé

A system and method for controlling an unmanned aerial vehicle (UAV) including a plurality of propellers. The method comprises setting an initial rotational speed of each propeller, obtaining a control input including desired state trajectories, and determining an altitude-and-attitude control action based on an X-orientation model. The X-orientation model includes an input-to-state feedback linearization, an estimated disturbance, and the control input. The altitude-and-attitude control action is changed to incorporate a first supertwisting controller and a first sliding surface. A position X-Y control action is determined based on the desired state trajectories and the X-orientation model. The position X-Y control action includes a second supertwisting controller and a second sliding surface. A required rotational speed of each propeller is determined based on the altitude-and-attitude control action and the position X-Y control action. The initial rotational speed of each propeller is changed to the required rotational speed.

Classes IPC  ?

• G05D 1/495 - Commande de l’attitude, c.-à-d. commande du roulis, du tangage ou des embardées pour assurer la stabilité
• B64U 50/13 - Propulsion utilisant des soufflantes ou des hélices externes
• G05D 1/46 - Commande de la position ou du cap dans les trois dimensions
• G05D 1/48 - Commande de l’altitude ou de la profondeur
• G05D 109/25 - Giravions

Abrégé

Improved control of reaction products in water-based microbubble chemistry is provided by application of an alternating electrical potential. One example considered in detail is the partial oxidation of methane, where the frequency and amplitude of the alternating electrical potential can be adjusted to selectively enhance methanol production relative to other reaction products.

Classes IPC  ?

• C01D 3/04 - Chlorures
• C01D 3/06 - Préparation par traitement de saumures, eau de mer ou lessive épuisées
• C01D 3/08 - Préparation par traitement de mélanges salins naturels ou industriels ou de minéraux siliceux

Produits et services

Business consulting and advisory services in the field of volunteer management; organizational development services for non-profit organizations; consultancy regarding the implementation of volunteer management standards; assessment, evaluation, and improvement of volunteer management practices; support services for establishing and operating volunteer management units Education and training services in the field of volunteer management; providing qualification and certification programs for volunteer managers and consultants; conducting workshops, seminars, and professional development programs; preparation, publication, and distribution of educational guides, manuals, and training materials relating to volunteer management

Abrégé

A method of storing hydrogen includes treating an underground geological formation containing subterranean rocks and absorbing the hydrogen gas into the treated underground geological formation.

Classes IPC  ?

• B65G 5/00 - Emmagasinage des fluides dans des excavations ou cavités naturelles ou artificielles souterraines
• F17C 11/00 - Utilisation de solvants ou d'absorbants des gaz dans les récipients

Abrégé

2 hydrogenation catalyst is used in a method of hydrogenating carbon dioxide to produce olefins.

Classes IPC  ?

• B01J 23/04 - Métaux alcalins
• B01J 21/04 - Alumine
• B01J 21/16 - Argiles ou autres silicates minéraux
• B01J 23/745 - Fer
• B01J 35/40 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général caractérisés par leurs dimensions, p. ex. granulométrie
• B01J 35/61 - Surface spécifique
• B01J 35/63 - Volume des pores
• B01J 37/00 - Procédés de préparation des catalyseurs, en généralProcédés d'activation des catalyseurs, en général
• B01J 37/08 - Traitement thermique
• B01J 37/18 - Réduction avec des gaz contenant de l'hydrogène libre
• C07C 1/04 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir d'oxydes de carbone à partir de monoxyde de carbone avec de l'hydrogène

Abrégé

8) phase.

Classes IPC  ?

• H01B 1/14 - Matériau conducteur dispersé dans un matériau inorganique non conducteur
• C03B 19/06 - Autres méthodes de façonnage du verre par frittage
• C03C 14/00 - Compositions de verre contenant un constituant non vitreux, p. ex. compositions contenant des fibres, filaments, trichites, paillettes ou similaires, dispersés dans une matrice de verre
• C04B 35/488 - Composites
• C04B 35/626 - Préparation ou traitement des poudres individuellement ou par fournées
• C04B 35/64 - Procédés de cuisson ou de frittage
• C04B 35/653 - Procédés comportant une étape de fusion
• H01M 10/0562 - Matériaux solides
• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires

Abrégé

A method of depolymerizing polyethylene terephthalate that includes heating to 140 to 210° C. a reaction mixture including polyethylene terephthalate, a salt, urea, and a glycol. The salt includes an alkali or alkaline earth metal cation and a carboxylate having 1 to 6 carbon atoms. The reaction results in depolymerization to form a glycol ester of terephthalic acid including the glycol.

Classes IPC  ?

• C08J 11/26 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation par traitement avec une substance organique par traitement avec des composés organiques contenant de l'oxygène contenant des groupes acide carboxylique, leurs anhydrides ou esters
• C07C 67/297 - Préparation d'esters d'acides carboxyliques par modification de la partie hydroxyle de l'ester sans introduction d'un groupe ester par élimination de groupes fonctionnels ou d'hydrogènePréparation d'esters d'acides carboxyliques par modification de la partie hydroxyle de l'ester sans introduction d'un groupe ester par hydrogénolyse de groupes fonctionnels
• C07C 67/60 - SéparationPurificationStabilisationEmploi d'additifs par traitement donnant lieu à une modification chimique
• C08J 11/24 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation par traitement avec une substance organique par traitement avec des composés organiques contenant de l'oxygène contenant des groupes hydroxyle
• C08J 11/28 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation par traitement avec une substance organique par traitement avec des composés organiques contenant de l'azote, du soufre ou du phosphore

Abrégé

The present disclosure directs to a computer-implemented method for monitoring and treatment of a drilling fluid during a drilling operation by utilizing machine learning techniques. The method determines a mud density of the drilling fluid at a first predetermined time interval by measuring a mud weight (MW) of the drilling fluid. The method further performs a Marsh funnel (MF) measurement to assess a drilling fluid viscosity of the drilling fluid at the first predetermined time interval. The method further predicts a gel strength of the drilling fluid for a second predetermined time interval in real-time using an artificial neural network based on the measured mud density and the drilling fluid viscosity. The method further adjusts density of the drilling fluid to optimize well cuttings suspension and removal by adding an additive in response to the predicted gel strength.

Classes IPC  ?

• E21B 21/06 - Dispositions pour traiter les fluides de forage à l'extérieur du trou de forage
• E21B 7/04 - Forage dirigé
• E21B 41/00 - Matériel ou accessoires non couverts par les groupes
• G01N 9/04 - Recherche du poids spécifique ou de la densité des matériauxAnalyse des matériaux en déterminant le poids spécifique ou la densité en mesurant le poids d'un volume connu des fluides
• G01N 11/04 - Recherche des propriétés d'écoulement des matériaux, p. ex. la viscosité, la plasticitéAnalyse des matériaux en déterminant les propriétés d'écoulement en mesurant l'écoulement du matériau à travers un passage étroit, p. ex. un tube, une ouverture
• G01N 33/28 - Huiles

Abrégé

A method of preparing activated carbon (AC) from seed shells of Balanites aegyptiaca comprising: comminuting the seed shells to form a powder having a particle size of about 50 mesh to about 300 mesh; admixing the powder with solid state potassium hydroxide (KOH) at a ratio by weight of KOH powder of about 1.5:1 to about 2.5:1; forming a slurry of the obtained mixture in water under stirring for a duration of from about 1 hour to about 5 hours; drying the obtained slurry and deagglomerating the residual solid fraction thereof; subjecting the deagglomerated solid fraction to carbonization by heating said fraction under an inert atmosphere; and, cooling and neutralizing the product of said carbonization.

Classes IPC  ?

• C01B 32/318 - Préparation caractérisée par les matières de départ

Abrégé

A method of forming a catalytic electrode that includes depositing particles of a metal-organic framework onto a conductive substrate to form a coated substrate, exposing the coated substrate to a laser having a wavelength (λ) of 5 μm to 10 μm and a power of 25 W to 35 W to form a carbonized product, and washing the carbonized product to obtain the catalytic electrode. The metal organic framework is at least one selected from the group consisting of a copper containing metal organic framework and a cobalt/nickel containing metal organic framework. The carbonized product includes a carbon-containing porous scaffold, and nanoparticles which are at least one selected from the group consisting of cobalt-nickel (Co—Ni) alloy nanoparticles and copper oxide (CuO) nanoparticles disposed on the carbon-containing porous scaffold.

Classes IPC  ?

• C25B 11/091 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’au moins un élément catalytique et d’au moins un composé catalytiqueÉlectrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé de plusieurs éléments catalytiques ou composés catalytiques
• B82Y 30/00 - Nanotechnologie pour matériaux ou science des surfaces, p. ex. nanocomposites
• B82Y 40/00 - Fabrication ou traitement des nanostructures
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 11/031 - Électrodes poreuses
• C25B 11/065 - Carbone
• C25B 11/089 - Alliages
• C25B 15/025 - Paramètres de l’électrolyte

Abrégé

A method for classifying Partial Discharge (PD) in an electrical equipment includes detecting a mechanical wave produced by an electrical discharge event using an acoustic emission sensor. Further, the detected mechanical wave is converted into an audio signal. Upon conversion, a waveform of the audio signal is determined, and the determined waveform is converted into a waveform image. Once the determined waveform is converted into the waveform image, a fault class among four different PD types is predicted based on the waveform image using a Convolution Neural Network (CNN). Further, an indication of the fault class of the electrical equipment is provided as an output to a user.

Classes IPC  ?

• G01R 31/14 - Circuits à cet effet
• G01R 31/12 - Test de la rigidité diélectrique ou de la tension disruptive

Abrégé

A crosslinked endothermic fluid composition may comprise an aqueous solution; ammonium chloride; a polymer; and a crosslinker. A method of thermally shocking a subsurface formation may comprise introducing the crosslinked endothermic fluid composition into a wellbore fluidly connected to the subsurface formation; exposing the crosslinked endothermic fluid composition to the subsurface formation, such that a temperature of the subsurface formation at least partially breaks a crosslink of the crosslinked endothermic fluid composition and exposes at least a portion of the ammonium chloride; reacting the ammonium chloride in the crosslinked endothermic fluid composition with fluids of the subsurface formation, thereby decreasing a temperature of the subsurface formation and producing ammonia; and thermally shocking the subsurface formation via the decreased temperature and produced ammonia, thereby inducing one or more fractures in the subsurface formation.

Classes IPC  ?

• E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
• C09K 8/68 - Compositions à base d'eau ou de solvants polaires contenant des composés organiques
• E21B 36/00 - Aménagements pour le chauffage, le refroidissement ou l'isolation dans les trous de forage ou dans les puits, p. ex. pour être utilisés dans les zones de permagel

Abrégé

An extruded cracking catalyst may comprise a zeolite component mixed with an alumina binder. The zeolite component comprises ZSM-5 having a SiO2/Al2O3 molar ratio greater than or equal to 50. The alumina binder is formed via peptization with at least 1 wt/wt % phosphoric acid. A hydrocarbon feed stream may be cracked by contacting the hydrocarbon feed stream with the extruded cracking catalyst in a reactor unit.

Classes IPC  ?

• C10G 11/05 - Alumino-silicates cristallins, p. ex. tamis moléculaires
• B01J 29/40 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11
• B01J 35/63 - Volume des pores
• B01J 37/00 - Procédés de préparation des catalyseurs, en généralProcédés d'activation des catalyseurs, en général
• B01J 37/28 - Phosphoration

Abrégé

A leak detection system and a method for detecting multiple simultaneous leaks in a pipeline system. The leak detection system includes a valve for perturbing fluid pressure, a detachable pressure measurement device, and a signal acquisition unit for acquiring transient pressure signals with random noise. A neural network model maps these signals to an output leak function, which is a probability density function proportional to pipeline length. The dimension of this function is fixed and independent of the number of leaks present. The system includes a display showing the output leak function alongside a pipeline diagram, indicating leak locations. The leak detection system facilitates efficient detection and localization of multiple leaks simultaneously, adapting to various pipeline configurations and operational conditions.

Classes IPC  ?

• G01M 3/28 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour tuyaux, câbles ou tubesExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour raccords ou joints d'étanchéité de tuyauxExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour soupapes
• E03B 7/00 - Canalisations principales ou réseaux de distribution
• F17D 5/02 - Prévention, interception ou localisation des pertes

Abrégé

A system of waste management includes a steam gasification unit to convert municipal solid waste to a syngas. A molten carbonate fuel cell (MCFC) unit receives the syngas at an anode and an industrial exhaust gas at a cathode to generate electrical energy and separate a first carbon dioxide gas. An oxygen combustion unit receives remaining syngas from the anode and combusts the remaining syngas with oxygen to generate a heated gas stream. A steam Rankine cycle unit captures a first thermal energy from the heated gas stream. A carbon capture unit separates water and a second carbon dioxide gas from a resulting cooled gas stream. An electrolysis unit uses the electrical energy from the MCFC unit to split water into the oxygen gas for the oxygen combustion unit and a second hydrogen gas for the anode.

Classes IPC  ?

• B09B 3/70 - Traitement chimique, p. ex. ajustement du pH ou oxydation
• B09B 3/45 - Traitement à la vapeur, p. ex. gazéification ou oxydation de l'eau supercritique

Abrégé

Treating an underground geological formation with an imidazolium based ionic liquid will enhance oil recovery in oil reservoirs with carbonated rock. The treatment is suitable for oil recovery at harsh conditions with elevated temperature and high salinity.

Classes IPC  ?

• E21B 43/34 - Aménagements pour séparer les matériaux produits par le puits
• C09K 8/58 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c.-à-d. pour améliorer la mobilité de l'huile, p. ex. fluides de déplacement

Abrégé

2 uptake and oil recovery rate.

Classes IPC  ?

• C09K 8/594 - Compositions utilisées en combinaison avec du gaz injecté

Abrégé

A multilayer Janus membrane with directional wettability includes a polyvinylidene fluoride (PVDF) layer, a polyetherimide (PEI) layer and an intermediate layer of copper oxide nanoparticles and vinylidene fluoride and hexafluoropropylene copolymer (PVDF-HFP) or polyacrylonitrile (PAN). The intermediate layer is in contact between the PVDF layer and the PEI layer, and the PEI fibers interlock between the granular particles of the intermediate layer.

Classes IPC  ?

• B01D 69/12 - Membranes compositesMembranes ultraminces
• B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
• B01D 71/02 - Matériaux inorganiques
• B01D 71/34 - Fluorure de polyvinylidène
• B01D 71/42 - Polymères de nitriles, p. ex. polyacrylonitrile
• B01D 71/64 - PolyimidesPolyamide-imidesPolyester-imidesPolyamide-acides ou précurseurs similaires de polyimides

Abrégé

A solar photovoltaic-powered thermoelectric system and a method for using thereof to cool air are described. The solar photovoltaic-powered thermoelectric system includes a cabinet with a plurality of intake air fans and outtake cooling fans, and a plurality of thermoelectric modules. A sliding mechanism is connected to the exterior of the cabinet and supports a fixed bifacial photovoltaic panel and first and second sliding bifacial photovoltaic panels. An inverter generates a DC current from the power generated by the photovoltaic panels. A microcontroller actuates the sliding mechanism to position the photovoltaic panels to receive maximum solar radiation, provides the DC current to the thermoelectric modules, and actuates the intake and outtake fans to draw ambient air towards a heat sink and expel cooled air through an air duct. The solar photovoltaic-powered thermoelectric system provides efficient and sustainable cooling by utilizing solar energy and thermoelectric modules.

Classes IPC  ?

• H02S 10/30 - Systèmes thermo-photovoltaïques
• H02S 10/20 - Systèmes caractérisés par leurs moyens de stockage de l’énergie
• H02S 10/40 - Systèmes générateurs PV mobiles
• H02S 30/20 - Modules PV escamotables ou pliables
• H02S 40/10 - Dispositions pour le nettoyage
• H02S 40/22 - Moyens réflecteurs ou concentrateurs de lumière
• H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p. ex. module CA
• H02S 40/42 - Moyens de refroidissement

Abrégé

A method of completing a wellbore in a hydrocarbon-containing subterranean formation includes injecting a completion fluid into the wellbore to form a hydrostatic gradient at a hydrocarbon-producing depth in the wellbore. The completion fluid is an aqueous solution including 10 to 20 w/v % of a dicationic surfactant of Formula (I) having an alkyl linker and a lipophilic tail. The completion fluid reduces a torque of the wellbore by at least 25% at a temperature of at least 150° F.

Classes IPC  ?

• C09K 8/584 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c.-à-d. pour améliorer la mobilité de l'huile, p. ex. fluides de déplacement caractérisées par l'utilisation de tensio-actifs spécifiques
• C09K 8/588 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c.-à-d. pour améliorer la mobilité de l'huile, p. ex. fluides de déplacement caractérisées par l'utilisation de polymères spécifiques
• E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures
• E21B 33/14 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues pour la cimentation des tubes dans les trous de forage ou de sondage
• E21B 43/116 - Perforateurs à balles ou à charge profilée

Abrégé

A multimaterial mechanical metamaterial (MMM) system for multi-directional load dissipation includes a rigid structural framework made of a first material, including left, right, and middle structures. This framework houses elastic bars made of a second, more elastic material. Upon application of a compressive load, the geometry of the rigid framework causes horizontal bars to stretch, dissipating a first portion of the load in an orthogonal direction. As deformation increases, the framework engages the middle structure, causing a vertical bar to stretch and dissipate a second portion of the load in a direction opposite to the initial applied load. A method for using the MMM system for protection against compressive loads provides a sequential, two-stage mechanism for energy absorption and force redirection. The method includes placing the MMM system between a subject and a compressive load.

Classes IPC  ?

• F16F 7/12 - Amortisseurs de vibrationsAmortisseurs de chocs utilisant une déformation plastique de ses organes
• B32B 3/26 - Produits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche continue dont le périmètre de la section droite a une allure particulièreProduits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche comportant des cavités ou des vides internes
• B33Y 80/00 - Produits obtenus par fabrication additive

Abrégé

A method of scavenging hydrogen sulfide from a sour gas well includes injecting a nanoemulsion through a borehole into a subterranean geological formation including a gaseous hydrocarbon composition including hydrogen sulfide. The nanoemulsion includes a mineral oil, water, a surfactant, and an additive. The water is a continuous phase of the nanoemulsion. The surfactant is selected from a group consisting of a sodium dodecylbenzenesulfonate, a cetyltrimethylammonium bromide, and a nonionic polyoxyethylene detergent. The additive is selected from a group consisting of a silver salt and a copper salt. The method includes circulating the nanoemulsion in the borehole in the subterranean geological formation to contact the nanoemulsion with the hydrocarbon composition and reacting the nanoemulsion with the hydrogen sulfide in the gaseous hydrocarbon composition to form a production gas including less than 5 parts per million (ppm) of hydrogen sulfide.

Classes IPC  ?

• C09K 8/54 - Compositions pour inhiber in situ la corrosion dans les puits ou les trous de forage
• B01D 53/14 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
• E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures

Abrégé

A method of demulsifying a water-in-oil emulsion at room temperature including mixing an organic demulsifier solution comprising an organic solvent and about 200 ppm of a demulsifier relative to a total volume of the organic demulsifier solution with the water-in-oil emulsion to obtain an emulsion mixture, mixing an aqueous solution consisting of water and 0.005 to 2.5 wt. % of a chloride salt of a divalent zinc ion or a divalent calcium ion relative to a total volume of the aqueous solution with the water-in-oil emulsion to obtain a final emulsion, wherein the water-in-oil emulsion comprises 60 wt. % or more of water and 40 wt. % or less of an Arabian crude oil, agitating the final emulsion to obtain an agitated emulsion, and separating the agitated emulsion to form an oil phase and a water phase where the agitated emulsion achieves full phase separation in 7 minutes or less.

Classes IPC  ?

• B01D 17/04 - Rupture d'émulsions

Abrégé

A solid-state polymer electrolyte including, based on the weight of the electrolyte: from 60 to 75 wt. % of polyethylene oxide (PEO); from 20 to 30 wt. % of a lithium salt (Li+X−); and, from 1 to 20 wt. % of a zirconium (IV) benzene-1,3,5-tricarboxylate (BTC) metal-organic framework (MOF). The solid-state polymer electrolyte has an X-ray diffraction (XRD) pattern of MOF-808 and has the general formula Zr6O4(OH)4(BTC)(L)6, wherein L is an anion selected from the group consisting of fluoride, formate (COO−), acetate (CH3COO−), propionate (CH3CH2COO−) and benzoate (C6H5COO−). The solid-state polymer electrolyte may have: an enthalpy of melting (ΔHm) of less than 50 Jg−1; and, an ionic conductivity of at least 30 μScm−1, as determined by electrochemical impedance spectroscopy (EIS) at 20° C.

Classes IPC  ?

• H01M 10/0565 - Matériaux polymères, p. ex. du type gel ou du type solide
• H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de composés inorganiques autres que les oxydes ou les hydroxydes, p. ex. sulfures, séléniures, tellurures, halogénures ou LiCoFyEmploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p. ex. phosphates, silicates ou borates
• H01M 50/109 - Boîtiers primairesFourreaux ou enveloppes caractérisés par leur forme ou leur structure physique en forme de bouton ou plate

Abrégé

A method for diagnosing a fault in an electric power distribution network includes measuring three-phase current signals from local and remote terminals of a protected zone on the network, and computing differential current signals based on the measured three-phase current signals. The differential current signals are preprocessed using a filter to smooth the differential current signals. A maximal overlap discrete wavelet transform is applied on the smoothed differential current signals to obtain a plurality of detail coefficients. Observation signals comprising the plurality of detail coefficients are provided to a deep reinforcement learning (DRL) agent comprising a temporal convolution attention-based neural network (TCAN). The TCAN DRL agent is trained using a proximal policy optimization (PPO) method to propose a trip action corresponding to a trip or no trip command for a fault condition. Responsive to receiving a trip command, a trip signal is transmitted to a circuit breaker.

Classes IPC  ?

• H02J 3/001 -
• H02J 103/30 -

Abrégé

3−, followed by saturating rocks in the subterranean geologic formation with the solution for a duration of 1-24 hours, wherein the rocks include Austin chalk (AC), Indiana limestone (IL) or both. The method then includes injecting a liquid fractionating composition through the borehole into the subterranean geologic formation at a pressure of at least 1,000 psi to fracture the rocks in the subterranean geologic formation.

Classes IPC  ?

• C09K 8/80 - Compositions pour renforcer les fractures, p. ex. compositions pour agents de soutènement utilisés pour maintenir les fractures ouvertes
• C09K 8/66 - Compositions à base d'eau ou de solvants polaires

Abrégé

A system and method are disclosed for detecting object instances in a plurality of target images using a contrastive loss-augmented object detection model. The method includes pre-training the object detection model on a synthetic training image set, the synthetic set generated by superimposing augmented foreground instances onto background images. The model is subsequently fine-tuned on a real training image set comprising annotated object instances. The trained model is applied to detect and annotate object instances, such as road surface damages including cracks and potholes, in target images. The synthetic pre-training incorporates a contrastive loss to improve intra-class compactness and inter-class separability of feature embeddings. An aggregate loss comprising classification, regression, objectness, and contrastive loss terms is used to update model parameters. The system may be deployed on aerial platforms such as unmanned aerial vehicles (UAVs), and utilizes a self-supervised YOLOv7-based architecture to achieve enhanced detection performance.

Classes IPC  ?

• G06V 20/17 - Scènes terrestres transmises par des avions ou des drones
• G06T 5/50 - Amélioration ou restauration d'image utilisant plusieurs images, p. ex. moyenne ou soustraction
• G06V 10/774 - Génération d'ensembles de motifs de formationTraitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source méthodes de Bootstrap, p. ex. "bagging” ou “boosting”
• G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux

Abrégé

A method of enhanced oil recovery (EOR) includes injecting a surfactant fluid, through a borehole, into a subterranean hydrocarbon-bearing geological formation having a first production rate. The surfactant fluid includes 0.01 to 1.0 percent by weight (wt. %) sodium dodecyl sulfate, 0.005 to 0.4 wt. % silicon dioxide (SiO2) nanoparticles (NPs), and a brine solution with 55,000 to 60,000 parts per million (ppm) salt concentration based on a total weight of the surfactant fluid. The SiO2 NPs have a longest dimension of 10 to 20 nanometers (nm). The method further includes recovering one or more hydrocarbons from the subterranean hydrocarbon-bearing geological formation at a second production rate that is greater than the first production rate. The surfactant fluid does not form a scale or precipitate after 24 hours exposure to the subterranean hydrocarbon-bearing geological formation at a temperature of 70 degrees Celsius (° C.) or greater.

Classes IPC  ?

• C09K 8/60 - Compositions pour activer la production en agissant sur la formation souterraine
• E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures

Abrégé

An artificial lung system for direct air carbon capture. The artificial lung system includes a microfluidic device having a first connection point, a second connection point, and a third connection point, where the microfluidic device is configured to perform the direct air carbon capture. One or more air sacs each having an inlet and an outlet is connected to the microfluidic device. A multiple air channels are connected to the one or more air sacs and each air channel includes a valve. The valve of each air channel of the multiple air channels is configured to regulate microfluidic flows in the artificial lung system. An artificial heart is fluidly connected to the third connection point of the microfluidic device, where the artificial heart is configured to exchange a fluid in the microfluidic device.

Classes IPC  ?

• A61M 1/36 - Autre traitement du sang dans une dérivation du système circulatoire naturel, p. ex. adaptation de la température, irradiation
• B01D 53/62 - Oxydes de carbone
• B01D 53/84 - Procédés biologiques

Abrégé

III) using the first, second, and third pairs of relays (R1, R10), and performing one or more operations on the first pair of relays based on the collaborative determinations.

Classes IPC  ?

• H02H 7/26 - Protection sectionnelle de systèmes de câbles ou de lignes, p. ex. pour déconnecter une section dans laquelle un court-circuit, un défaut à la terre, ou une décharge d'arc se sont produits
• H02H 1/00 - Détails de circuits de protection de sécurité
• H02H 7/22 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour appareillage de distribution, p. ex. système de barre omnibusCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour dispositifs de commutation

Abrégé

A filtration membrane includes a polysulfone (PFS) membrane support, and a crosslinked polyamide layer disposed on the PFS membrane support. The crosslinked polyamide layer includes a network formed by polycondensation between diethylenetriamine and trimesoyl chloride, and graphene oxide (GO) nanosheets covalently bonded to the network via a linking spacer. The linking spacer includes a backbone chain having at least 8 backbone atoms. The backbone chain has a plurality of amine groups including —NH— and —NH2, and the linking spacer is bonded to the graphene oxide nanosheets via a —Si—O— bond and bonded to the network via reactions between trimesoyl chloride and the plurality of amine groups. A filtration method includes filtering a mixture including water and an organic molecule through the filtration membrane to generate a water permeate.

Classes IPC  ?

• B01D 69/14 - Membranes dynamiques
• B01D 69/10 - Membranes sur supportSupports pour membranes
• B01D 71/02 - Matériaux inorganiques
• B01D 71/56 - Polyamides, p. ex. polyesters-amides
• B01D 71/68 - PolysulfonesPolyéthersulfones
• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 101/30 - Composés organiques

Abrégé

A method and a system for performing natural language processing tasks in a text corpus includes removing all vowels from a block of words in the text corpus to obtain a reduced text corpus having reduced vocabulary. The method trains a plurality of causal language models including a statistical model, a recurrent neural network (RNN)-based model, and a transformer-based models with a training portion of the reduced text corpus. The method trains a plurality of natural language processing task models. The trained models can be used for a user-selected operation, including language modeling, text classification, sequence labeling, and translation tasks. The method provides text processing through vocabulary reduction while maintaining task performance. The reduced text representation decreases computational requirements while preserving linguistic information for natural language processing applications.

Classes IPC  ?

• G06F 40/284 - Analyse lexicale, p. ex. segmentation en unités ou cooccurrence

Abrégé

A security system and method implements proactive defense through host operating system isolation and virtualization. The security system and method include a host computer running a host operating system and multiple hosted virtual machines that serve as intermediate connections to isolate the host operating system from external networks. The virtual machines systematically back up data to cloud services having indirect connections to the host computer. An internal virtual private network interconnects the virtual machines, with a designated virtual machine serving as a network gateway to manage traffic flow. A secure controller within the host computer functions as a bridge between user applications and the host operating system, enforcing security protocols and managing core operations to ensure system integrity. The secure controller manages interactions between the virtual machines and cloud services, providing security measures while maintaining operational efficiency through parallel processing architecture.

Classes IPC  ?

• H04L 9/40 - Protocoles réseaux de sécurité
• G06F 9/455 - ÉmulationInterprétationSimulation de logiciel, p. ex. virtualisation ou émulation des moteurs d’exécution d’applications ou de systèmes d’exploitation

Abrégé

A surface-enhanced Raman scattering (SERS) substrate is provided. The SERS substrate includes a transparent substrate and a nanocomposite composition. The nanocomposite composition includes a silver-loaded silica (Ag—SiO2) nanocomposite having a silica core and a silver/silica shell disposed around the silica core and a zeolitic material having a nano porous structure. The silver/silica shell contains silver nanoparticles uniformly distributed therein. The Ag—SiO2 nanocomposite is uniformly disposed on a surface of the zeolitic material. The nanoparticles of the Ag—SiO2 nanocomposite are spherical and have a mean particle size of 100 to 500 nanometers (nm). A method of obtaining a Raman spectrum of a sulfur-containing compound in a mixing composition is also provided.

Classes IPC  ?

• G01N 21/65 - Diffusion de Raman
• B22F 1/054 - Particules de taille nanométrique
• B22F 1/18 - Particules non métalliques revêtues de métal

Abrégé

A coating composition for carbon steel includes a titanium dioxide hindered amine light stabilizer (TiO2-HALs) nanocomposite and an epoxy resin. The TiO2-HALs nanocomposite is present in the coating composition in an amount 1 to 10 wt. % based on the weight of the coating composition. The TiO2-HALs nanocomposite includes a homogenous distribution of TiO2 nanoparticles in a HALs matrix. A method of producing the coating includes synthesizing the TiO2/HALs nanocomposite, mixing the epoxy resin, and the TiO2/HALs nanocomposite for 6 to 10 h at a temperature of 25 to 75° C.

Classes IPC  ?

• C09D 5/08 - Peintures anti-corrosion
• C08K 3/22 - OxydesHydroxydes de métaux
• C08K 5/3475 - Cycles à cinq chaînons condensés avec des carbocycles
• C09D 163/00 - Compositions de revêtement à base de résines époxyCompositions de revêtement à base de dérivés des résines époxy
• C23C 24/08 - Revêtement à partir de poudres inorganiques en utilisant la chaleur ou une pression et la chaleur

Abrégé

A membrane includes a base layer and a support layer formed on the base layer. The support layer includes polysulfone (Psf), polyvinylpyrrolidone (PVP), and at least one diamine selected from the group consisting of 2-chloro-4,6-diamino-1,3,5-triazine, benzoguanamine, and acetoguanamine. The membrane further includes a polyamide layer formed on the support layer. The polyamide layer includes repeating units derived from piperazine and repeating units derived from trimesoylchloride. The polyamide is covalently bonded to at least some molecules of the at least one diamine in the support layer via an amide bond.

Classes IPC  ?

• B01D 69/10 - Membranes sur supportSupports pour membranes
• B01D 61/02 - Osmose inverseHyperfiltration
• B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
• B01D 69/12 - Membranes compositesMembranes ultraminces
• B01D 71/56 - Polyamides, p. ex. polyesters-amides
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C02F 101/30 - Composés organiques
• C02F 101/34 - Composés organiques contenant de l'oxygène
• C02F 101/36 - Composés organiques contenant des atomes d'halogène
• C02F 101/38 - Composés organiques contenant de l'azote

Abrégé

4) membrane includes two layers: a first layer including alumina and a second layer including an oxidized graphitic carbon nitride and a polymerized pyrrole. The carboxylic groups and hydroxyl groups of the oxidized carbon nitride interact via electrostatic interactions with polar groups in the polymerized pyrrole. The second layer is a nanofibrous mass including entangled nanofibers. The second layer has a thickness in of 1 to 3 μm.

Classes IPC  ?

• B01D 71/62 - Polycondensats ayant des hétérocycles contenant de l'azote dans la chaîne principale
• B01D 17/00 - Séparation de liquides, non prévue ailleurs, p. ex. par diffusion thermique
• B01D 17/02 - Séparation de liquides non miscibles
• B01D 65/02 - Nettoyage ou stérilisation de membranes
• B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
• B01J 27/24 - Composés de l'azote
• B01J 35/39 - Propriétés photocatalytiques
• C02F 1/32 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par irradiation par la lumière ultraviolette
• C02F 1/40 - Dispositifs pour séparer ou enlever les substances grasses ou huileuses, ou les matières flottantes similaires
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 101/30 - Composés organiques
• C02F 101/32 - Hydrocarbures, p. ex. huiles

Abrégé

A method and a system for distributed control of a direct current (DC) microgrid having a plurality of distributed generators (DGs) coupled to a DC bus through a plurality of converters includes measuring local voltage and current of each DG and computing, via a distributed voltage observer, an estimated average bus voltage using neighbor information exchanged over a communication network. Incremental cost (IC) consensus and bus voltage regulation errors are determined and constrained within time-varying performance bounds using an adjustable prescribed performance function (APPF). Control inputs are computed for convergence within a fixed time independent of initial conditions. An event-triggered communication mechanism minimizes data exchange by transmitting updates only when a triggering condition is satisfied. The droop references of the converters are updated to equalize DG ICs within power limits to regulate the estimated average bus voltage of the microgrid towards the nominal bus voltage.

Classes IPC  ?

• H02J 1/12 - Fonctionnement de générateurs à courant continu en parallèle avec des convertisseurs, p. ex. avec un redresseur à arc de mercure
• H02J 1/10 - Fonctionnement de sources à courant continu en parallèle
• H02J 13/12 -

Abrégé

A folded dipole patch antenna for use in a hyperthermia applicator is described. The antenna includes a dielectric circuit board, and a folded dipole microstrip antenna. The dielectric circuit board has a top side and a bottom side. The folded dipole microstrip antenna is formed on the top side and includes two meander paths mirror each other. A pair of parallel metallic strips is located on the bottom side. A coaxial feed port is connected to the pair of parallel metallic strips. The antenna is configured to resonate in a frequency range of about 434 MHz upon application of an input signal at the coaxial feed port. The folded dipole patch antenna has a small size and does not require an impedance matching circuit. The hyperthermia applicator is configured to emit microwave energy toward a target tissue within a human body.

Classes IPC  ?

• A61N 5/02 - Thérapie par radiations utilisant des hyperfréquences
• H01Q 9/04 - Antennes résonnantes
• H01Q 9/26 - Antennes résonnantes avec alimentation intermédiaire entre les extrémités de l'antenne, p. ex. dipôle alimenté par le centre avec élément replié ou éléments repliés, les parties repliées étant espacées l'une de l'autre d'une petite fraction de la longueur d'onde émise
• H05B 6/80 - Appareils pour applications spécifiques

Abrégé

A coating composition for carbon steel includes a titanium dioxide hindered amine light stabilizer (TiO2-HALs) nanocomposite and an epoxy resin. The TiO2-HALs nanocomposite is present in the coating composition in an amount 1 to 10 wt. % based on the weight of the coating composition. The TiO2-HALs nanocomposite includes a homogenous distribution of TiO2 nanoparticles in a HALs matrix. A method of producing the coating includes synthesizing the TiO2/HALs nanocomposite, mixing the epoxy resin, and the TiO2/HALs nanocomposite for 6 to 10 h at a temperature of 25 to 75° C.

Classes IPC  ?

• C09D 5/08 - Peintures anti-corrosion
• C08K 3/22 - OxydesHydroxydes de métaux
• C08K 5/3475 - Cycles à cinq chaînons condensés avec des carbocycles
• C09D 163/00 - Compositions de revêtement à base de résines époxyCompositions de revêtement à base de dérivés des résines époxy
• C23C 24/08 - Revêtement à partir de poudres inorganiques en utilisant la chaleur ou une pression et la chaleur

Abrégé

A method for water splitting using red mud includes applying a potential to an electrochemical cell with a working electrode, a reference electrode, and a counter electrode. The working electrode is a nickel foam substrate with an annealed red mud surface layer, containing 10 to 30 percent by weight iron. The electrochemical cell contains an aqueous basic solution which facilitates the electrolysis process upon applying potential. Water is split into hydrogen gas and oxygen gas at the working electrode.

Classes IPC  ?

• C25B 11/091 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’au moins un élément catalytique et d’au moins un composé catalytiqueÉlectrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé de plusieurs éléments catalytiques ou composés catalytiques
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 11/031 - Électrodes poreuses
• C25B 11/052 - Électrodes comportant un substrat et un ou plusieurs revêtements électro-catalytiques
• C25B 11/061 - Métal ou alliage

Abrégé

A method of desalinating an aqueous solution using a nanocomposite material includes contacting electrodes with an aqueous solution. The aqueous solution includes one or more pollutants and the nanocomposite material. The nanocomposite material includes graphene oxide and zeolitic imidazolate framework-7 (ZIF-7). The nanocomposite material is in the form of particles with the longest dimension ranging from 0.5 to 5 μm. The method further includes applying a potential to the electrodes and adsorbing the one or more pollutants on the nanocomposite material.

Classes IPC  ?

• C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
• C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
• C02F 1/46 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques
• C02F 101/20 - Métaux lourds ou leurs composés
• C02F 101/34 - Composés organiques contenant de l'oxygène
• C02F 103/08 - Eau de mer, p. ex. pour le dessalement

Abrégé

A system and a method for simultaneously predicting a stance, a sentiment, and a sarcasm from a text dataset. The system preprocesses input text based on user-defined parameters to obtain a preprocessed text batch. Shared layers encode and tokenize the preprocessed text batch to create a multi-task dataset with tokenized input text. Task-specific layers train a multi-task model with stance, sentiment, and sarcasm heads using the multi-task dataset. The system adjusts task weights of the multi-task model using a weighting scheme. The system predicts stance, sentiment, and sarcasm based on the trained multi-task model and adjusted task weights. This approach allows for efficient processing of text data, capturing complex interrelationships between stance, sentiment, and sarcasm.

Classes IPC  ?

• G06F 40/30 - Analyse sémantique
• G06F 40/126 - Encodage de caractères
• G06F 40/284 - Analyse lexicale, p. ex. segmentation en unités ou cooccurrence

Abrégé

A method of producing concrete, including mixing natural pozzolan and an activator including sodium silicate and brine sludge to form an alkali activated binder; and mixing a coarse aggregate and a fine aggregate with the activated alkali binder to form the concrete, where a density of the brine sludge is about 100 kg/m3, a ratio of the sodium silicate to the brine sludge is about 2.5 to 1 by mass, and an oxide composition of the brine sludge comprises 15-20 wt % CaO, 2-6 wt % MgO, 0.5-2 wt % SrO, 0.5-2 wt % Fe2O3, 0.5-1.5 wt % SiO2, 0-0.5 wt % SO3, 12-18 wt % Na2O, 7-10 wt % BaO, 2-5 wt % Al2O3, 0.25-1 wt % K2O, and 5-10 wt % Cl, and a loss on ignition of 35-45 wt %. An alkali activated binder, including: natural pozzolan; and an alkali activator including sodium silicate and brine sludge. A concrete, including: the alkali activated binder; coarse aggregate; and fine aggregate.

Classes IPC  ?

• C04B 12/04 - Ciments à base de silicates de métaux alcalins ou d'ammonium
• C04B 7/13 - Leurs mélanges avec des matières inorganiques cimentaires, p. ex. ciments Portland
• C04B 14/28 - Carbonates de calcium

Abrégé

A terrestrial communication on a three-dimensional internet of drone (IoD)-assisted vehicle ad-hoc network including a plurality of drones and a plurality of vehicles system and method is disclosed. The method includes obtaining first geographical coordinates of each vehicle of the plurality of vehicles and estimating a first elevation of each vehicle of the plurality of vehicles at the first geographical coordinates. The method involves obtaining second geographical coordinates for each drone in a plurality of drones, detecting obstacles between vehicles, determining signal attenuation using a propagation module, and evaluating signal attenuation using an objective function to determine target coordinates for each drone. It also detects obstacles between vehicles using the first and second coordinates and uses a propagation module to determine the signal attenuation. The method includes deploying the plurality of drones based on the target coordinates and facilitating the terrestrial communication on the three-dimensional IoD-assisted vehicle ad-hoc network.

Classes IPC  ?

• H04B 17/391 - Modélisation du canal de propagation
• H04B 7/026 - Diversité coopérative, p. ex. utilisant des stations fixes ou mobiles en tant que relais
• H04B 17/318 - Force du signal reçu
• H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p. ex. gestion de la mobilité

Abrégé

A method of drilling a wellbore into a subterranean geological formation includes drilling the subterranean geological formation to form the wellbore, then circulating an invert emulsion drilling fluid into the wellbore during the drilling to suspend cuttings formed during the drilling. The invert emulsion drilling fluid includes diesel, a primary emulsifier, a secondary emulsifier, a brine including water and a polished brine sludge (PBS) powder including halite in an amount of 55 to 75 wt. %, calcite in an amount of 25 to 40 wt. %, and brucite in an amount of 2 to 6 wt. %, based on the total dry weight of the PBS powder, at least one viscosifier, at least one weighting agent, and at least one alkali. The invert emulsion drilling fluid has an oil-to-water volume ratio of 90:10 to 70:30. The invert emulsion drilling fluid does not include calcium chloride.

Classes IPC  ?

• C09K 8/36 - Émulsions eau-dans-l'huile
• E21B 21/06 - Dispositions pour traiter les fluides de forage à l'extérieur du trou de forage

Abrégé

A method and system for securing communication between a Phasor Measurement Unit (PMU) and a Phasor Data Concentrator (PDC) in accordance with IEEE C37.118.2-2024. The method includes receiving, at the PMU, a command frame requesting an authentication certificate, receiving a configuration frame comprising an X.509 certificate of the PDC, generating a public-private key pair, and transmitting a configuration frame comprising an X.509 certificate of the PMU. Mutual authentication is performed by verifying received certificates using a trusted Certificate Authority. Upon successful authentication, the PMU transmits synchrophasor data messages formatted per IEEE C37.118.2-2024, each appended with a security algorithm field and a FALCON-512 digital signature generated over defined message fields. The PDC verifies signatures using the PMU's public key and authenticates messages only upon successful verification. Replay protection is achieved through SOC timestamp comparison, rendering quantum-resistant, authenticated, and integrity-protected synchrophasor communication without altering the original IEEE C37.118.2 frame structure.

Classes IPC  ?

• H04L 9/32 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
• H04L 9/08 - Répartition de clés
• H04L 9/30 - Clé publique, c.-à-d. l'algorithme de chiffrement étant impossible à inverser par ordinateur et les clés de chiffrement des utilisateurs n'exigeant pas le secret

Abrégé

A system and method are provided for transitioning a distributed ledger or blockchain to a post-quantum authorization through a soft fork that avoids interruption or delay of network operation including defining a first activation block height (h1) to initiate the transition and a second activation block height (h2) greater than the first activation block height to complete the transition. For each block during the transition, transactions are validated by applying a height-based rule set that enforces a classical digital signature scheme before the first activation block height, permits both classical and post-quantum digital signature schemes between the first and second activation heights while requiring post-quantum authorization for newly created ledger units and enforces only post-quantum authorization after the second activation height. At the second activation height, all ledger units authorized under the classical digital signature scheme become invalid, resulting in a distributed ledger operating exclusively under post-quantum authorization.

Classes IPC  ?

• H04L 9/00 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité
• H04L 9/32 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
• H04L 9/40 - Protocoles réseaux de sécurité
• G06N 10/20 - Modèles d’informatique quantique, p. ex. circuits quantiques ou ordinateurs quantiques universels
• G06N 10/80 - Programmation quantique, p. ex. interfaces, langages ou boîtes à outils de développement logiciel pour la création ou la manipulation de programmes capables de fonctionner sur des ordinateurs quantiquesPlate-formes pour la simulation ou l’accès aux ordinateurs quantiques, p. ex. informatique quantique en nuage

Abrégé

A hybrid supported metallocene catalyst including a first layer based on hydroxide-functionalized hexagonal boron nitride, at least partially reacted with methylaluminoxane through an oxygen atom of hydroxyl groups of the hydroxide-functionalized hexagonal boron nitride. The hybrid support is in the form of layered nanosheets with a longest dimension of 50 to 500 nm.

Classes IPC  ?

• C08F 10/02 - Éthylène
• C07F 5/06 - Composés de l'aluminium